@Article{HH02a,
  author = 	 {Ralf Hartmann and Paul Houston},
  title = 	 {Adaptive Discontinuous {G}alerkin Finite Element Methods
                  for Nonlinear Hyperbolic Conservation Laws},
  journal = 	 {SIAM J. Sci. Comp.},
  year = 	 {2002},
  volume =	 24,
  pages =	 {979--1004}
}